897356461 has 2 divisors, whose sum is σ = 897356462. Its totient is φ = 897356460.

The previous prime is 897356459. The next prime is 897356479. The reversal of 897356461 is 164653798.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 847159236 + 50197225 = 29106^2 + 7085^2 .

It is a cyclic number.

It is not a de Polignac number, because 897356461 - 2¹ = 897356459 is a prime.

Together with 897356459, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (897353461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 448678230 + 448678231.

It is an arithmetic number, because the mean of its divisors is an integer number (448678231).

Almost surely, 2^897356461 is an apocalyptic number.

It is an amenable number.

897356461 is a deficient number, since it is larger than the sum of its proper divisors (1).

897356461 is an equidigital number, since it uses as much as digits as its factorization.

897356461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 49.

The square root of 897356461 is about 29955.9086158307. The cubic root of 897356461 is about 964.5431579892.

The spelling of 897356461 in words is "eight hundred ninety-seven million, three hundred fifty-six thousand, four hundred sixty-one".